Home / 72,269.11-99,731.60-40,437.93

Finding the Fourth Proportional to 72,269.11, 99,731.60 and 40,437.93

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Solution

The fourth proportional to 72,269.11, 99,731.60 and 40,437.93 is: 55,804.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,269.11 : 99,731.60 = 40,437.93 : x
  2. Step 2: Convert to fraction form
    72,269.11/99,731.60 = 40,437.93/x
  3. Step 3: Cross multiply
    72,269.11x = 99,731.60 × 40,437.93
  4. Step 4: Simplify right side
    72,269.11x = 4,032,940,010.50
  5. Step 5: Solve for x
    x = 4,032,940,010.50/72,269.11
  6. Step 6: Final answer
    x = 55,804.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.